Wrestling icon Jake 'The Snake' Roberts is facing a new cancer battle after doctors discovered another tumour in his chest while treating him for double pneumonia.

The veteran WWE (World Wrestling Entertainment) star was hospitalized with the chest infection in Las Vegas last month, six months after undergoing surgery to remove a tumour in his knee.

During his latest stay, the 59-year-old learned his health crisis is far from over.

Roberts, who previously overcame a drug problem, made a surprise appearance at the Future Stars of Wrestling show in Sin City on Saturday and shared the sad news with fans, but remained confident about his outlook, telling the crowd, "If you can beat addiction, you can beat cancer."